Propeller for vessels.



No. 643,646. Patented Feb. 20, I900. C. E. HANSEN.

PBUPELLER FOR VESSELS.

(Application filed July 20, 1899.)

(No Model.)

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UNITED STATES CHRISTIAN E. HANSEN, OF CHICAGO, ILLINOIS.

PROPELLER FOR VESSELS.

SPECIFICATION forming part of Letters Patent No. 643,646, dated February20, 1900. Application filed July 20, 1899. Serial No. 724,470. (Nomodel.)

To aZZ whom it may concern.-

Be it known that I, CHRISTIAN E. HANSEN, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Propellers for Steam andother Vessels, of which the following is a full, clear, and exactspecification.

This invention relates to propellers for steam and othervessels in whichthe paddles are secured to an endless traveler propelled by drums inturn actuated by steam or any other power.

One object of my invention is to have a propeller of such a constructionand arrangement that it may be located on each side of a boat in such amanner that only about onehalf of the paddles are in the water at thesame time, which paddles may be actuated by a shaft movement having auniform motion,as distinguished from a crank-arm movement common to mostvessel paddle-wheels, and so secured to an endless traveler as to reducethe leverage tending to bend them out of their proper position or withrelation to the traveler.

A still further object is to provide a simple and effective constructionpreventing the paddles from accidentally engaging with the drumscarrying the cables or other endless carrier to which the paddles aresecured.

With these ends in view my invention consists in certain features ofnovelty in the construction, combination, and arrangement of parts bywhich the said objects and certain other objects hereinafter appearingare attained, all as fully described with reference to the accompanyingdrawings, and more particularly pointed out in the claim.

In the said drawings, Figure 1 is a side elevation of a boat,illustrating the operative position of a propeller containing myinvention. Fig. 2 is an enlarged side elevation of a propeller alone.Fig. 3 is an end elevation of the same. Fig. at is a detail sectiontaken transversely of the cable or other carrier,illustrating means forsecuring paddles thereto; and Fig. 5 is a side elevation of the same.

A indicates a boat of any ordinary construction having projecting fromits sides two shafts B O, which may be propelled by steam or hand power,depending upon the character of boat in which they are used. The shaftsB C have secured thereon grooved drums D E, with space between themcorresponding with the width of the paddles F.

The paddles F are secured to cables G G at each side in such a mannerthat a portion of the bodies of the paddles may project between the saiddrums, and by reason of this I am enabled to secure the paddles to thecables at about midway their lengths, the purpose of which is that whenin the water the pressure thereof will be equally distributed both aboveand below the cable and on the paddles in such a manner that the paddleswill remain upright in the water and the line of the water-pressure beat all times parallel with the cables and the strain of the paddles upontheir fastenings to the cables be reduced to the minimum.

As shown in Fig. 2, the paddles are secured to the cables bylaterally-projecting plates a, clamping the cable, and bolted togetherby bolts (indicated at b) on each side of the cable, the equivalent ofwhich plates,- as shown in Fig. 4:, has an arm 0, secured by a bolt 61to the paddles at each side thereof and bent upon the cable and clampedby means of the bolts or rivets e.

To prevent the submerging of the paddles in their upper and forwardmovement when from any cause the vessel careens, the upper paddles areinclosed by a casing II, extending over the paddles and well down uponthe outer sides thereof to as nearly as practical the lower andoperating paddles, as shown in Fig. 1.

Having thus described my invention, What I claim as new therein, anddesire to secure by Letters Patent, is-

The combination with a vessel, of an end= less paddle-propelling devicearranged upon the outer sides thereof and comprising parallel cables,paddles rigidly secured to said cables at a right angle thereto andprojecting beyond both sides of the cables, grooved drums carrying saidcables and between which the paddles project, shafts actuating saiddrums and a casing inclosing the upper paddles, substantially asdescribed.

CHRISTIAN E. HANSEN.

Witnesses:

JNo. G. ELLIOTT, HAROLD G. BASSETT.

